CN108669627B - Deep processing method of tobacco stem shreds - Google Patents

Abstract

The invention discloses a deep processing method of tobacco cut stems, which comprises the steps of firstly, carrying out moisture regain treatment on cut stems with large size defects; then blending and mixing the cut stems subjected to moisture regain treatment with the tobacco leaves according to a preset weight ratio; shredding the mixed cut stems and tobacco leaves to obtain primary cut stems; and finally, performing shredding follow-up treatment on the primary cut stems. According to the deep processing method, the cut tobacco is cut after the cut stems with the large-size defect are mixed with the tobacco leaves after moisture regain treatment, interaction force among the cut stems can be greatly reduced due to the existence of the tobacco leaves, the situation that the cut stems are in a powder state can be greatly reduced, and meanwhile, the cut stems with the large-size defect undergo one-time cutting operation again, so that the size of the cut stems can be reduced and thinned, and then the cut stems can be closer to the size of cut tobacco of slim cigarettes, so that the problem that the size of the cut stems is still large after the cut stems are processed, and the quality of a cigarette making machine and the quality of the slim cigarettes produced are easily influenced is solved.

Description

Deep processing method of tobacco stem shreds

Technical Field

The invention relates to the technical field of tobacco processing, in particular to a deep processing method of tobacco cut stems.

Background

The tobacco shred is prepared by cutting tobacco leaf into thread, granule, sheet, powder or other shapes, adding adjuvants, fermenting, storing, and making into tobacco product for sale and smoking without rolling. The tobacco leaves are formed after processing, the taste of the cigarettes is greatly different according to different producing areas, and the cut tobacco of the genuine cigarette mainly comprises cut tobacco leaves, cut stems, cut tobacco sheets and other components. Wherein the purpose of filling cut stems in the cut tobacco is mainly to reduce tar amount.

The traditional processing flow of cut rolled tobacco stems, as shown in fig. 1, is as follows: feeding tobacco stems, washing (soaking) the tobacco stems, moistening the tobacco stems, heating the tobacco stems, pressing the tobacco stems, cutting cut tobacco stems, feeding and dampening the cut tobacco stems, drying the cut tobacco stems, flexibly winnowing the cut tobacco stems, and storing the cut tobacco stems. The cut stems processed by the method are in a large sheet shape and have larger size; if the secondary cutting is directly carried out on the cut stems in the cut stem process, although the problem of large size of the cut stems can be relieved to a certain extent, a lot of powder-shaped cut stems can be generated at the same time, and the use of the cut stems is influenced. And the stem shreds with the defect of larger size are difficult to be uniformly filled into the fine cigarettes when used in the fine cigarette products, so that the cigarette making machine is frequently stopped due to faults during production, and the single weight and the suction resistance fluctuation of the fine cigarette products using the stem shreds are also larger, so that the quality of the fine cigarettes is influenced.

In summary, how to solve the problem that the cut stems are still large in size after the cut stems are processed, which is easy to affect the quality of the cigarette making machine and the produced fine cigarettes, has become a technical problem to be solved urgently by the technical staff in the field.

Disclosure of Invention

The invention aims to provide a deep processing method of tobacco cut stems, which aims to solve the problem that the quality of a cigarette making machine and produced fine cigarettes is easily affected because the cut stems are still large in size after the tobacco cut stems are processed.

In order to achieve the above object, the present invention provides a method for further processing cut tobacco stems, comprising:

step S1: moisture regaining treatment is carried out on the cut stems with the defect of large size;

step S2: blending and mixing the cut stems subjected to moisture regain treatment with the tobacco leaves according to a preset weight ratio;

step S3: shredding the mixed cut stems and tobacco leaves to obtain primary cut stems;

step S4: and (4) shredding the primary cut stems for subsequent treatment.

Preferably, the shredding post-process in the step S4 includes:

step S41: drying the primary cut stems;

step S42: carrying out air conveying treatment on the primary-shaped cut stems after the drying treatment is finished;

step S43: carrying out flexible air separation treatment on the primary cut stems subjected to air conveying treatment;

step S44: and storing the primary cut stems subjected to the flexible winnowing treatment.

Preferably, before performing the step S41, the method further includes the steps of:

step S40: and heating and humidifying the initial cut stems.

Preferably, the temperature of the warming and humidifying treatment in the step S40 is 70 ℃ to 80 ℃, the humidity is 18% to 21%, and the holding time is 5 seconds.

Preferably, the drying treatment in step S41 is drum drying, the temperature of the dried drum wall is 130-140 ℃, and the drying time is 3-4 minutes.

Preferably, the moisture of the cut stems subjected to the moisture regain treatment in the step S1 is 17% ± 1%.

Preferably, the preset weight ratio in the step S2 is 20% ± 2% of the cut stems based on the total weight of the cut stems and the tobacco leaves.

Preferably, the cutting gap of the knife used in the shredding operation in the step S3 is 0.12mm ± 0.01 mm.

Compared with the introduction content of the background technology, the deep processing method of the tobacco cut stems comprises the following steps: firstly, moisture regaining treatment is carried out on cut stems with the defect of large size; then blending and mixing the cut stems subjected to moisture regain treatment with the tobacco leaves according to a preset weight ratio; shredding the mixed cut stems and tobacco leaves to obtain primary cut stems; and finally, performing shredding follow-up treatment on the primary cut stems. According to the method for deeply processing the tobacco stems, the tobacco stems with the defect of large size are subjected to moisture regain treatment and then mixed with tobacco leaves for shredding, compared with the method for directly performing secondary cutting on the tobacco stems in the tobacco stem shredding process, due to the tobacco leaves, the interaction force between the tobacco stems can be greatly reduced, the situation that the tobacco stems are in a terminal state can be greatly reduced, meanwhile, due to the fact that the tobacco stems with the defect of large size are subjected to primary shredding operation, the tobacco stems can be reduced and thinned, the tobacco stem size of the thin cigarette can be more approximate to the tobacco stem size of the thin cigarette, the problem that the tobacco stem size is still large after the tobacco stems are processed and the quality of the thin cigarette produced by a cigarette making machine is easily influenced is solved.

Drawings

FIG. 1 is a flow chart of a conventional method for processing cut rolled tobacco stems;

fig. 2 is a flow chart of a method for further processing cut rolled tobacco stems according to an embodiment of the present invention.

Detailed Description

The core of the invention is to provide a deep processing method of tobacco cut stems, which aims to avoid the problem that the quality of a cigarette making machine and produced fine cigarettes is easily influenced because the size of the cut stems is still larger after the tobacco cut stems are processed.

In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2, an embodiment of the present invention provides a method for further processing cut rolled tobacco stems, including:

step S1: the method comprises the following steps of (1) carrying out moisture regaining treatment on cut stems with large-size defects, wherein the moisture regaining treatment refers to that steam and water are sprayed into a drum moisture regaining cylinder filled with tobacco products to increase the moisture of the tobacco products in the cylinder;

step S2: blending and mixing the cut stems subjected to moisture regain treatment with the tobacco leaves according to a preset weight ratio;

step S3: shredding the mixed cut stems and tobacco leaves to obtain primary cut stems;

step S4: and (4) shredding the primary cut stems for subsequent treatment.

According to the method for deeply processing the tobacco stems, the tobacco stems with the defect of large size are subjected to moisture regain treatment and then mixed with tobacco leaves for shredding, compared with the method for directly performing secondary cutting on the tobacco stems in the tobacco stem shredding process, due to the tobacco leaves, the interaction force between the tobacco stems can be greatly reduced, the situation that the tobacco stems are in a terminal state can be greatly reduced, meanwhile, due to the fact that the tobacco stems with the defect of large size are subjected to primary shredding operation, the tobacco stems can be reduced and thinned, the tobacco stem size of the thin cigarette can be more approximate to the tobacco stem size of the thin cigarette, the problem that the tobacco stem size is still large after the tobacco stems are processed and the quality of the thin cigarette produced by a cigarette making machine is easily influenced is solved.

Here, the shredding subsequent process in step S4 includes:

step S41: drying the primary cut stems;

step S42: the method comprises the following steps of (1) carrying out air conveying treatment on the primary-shaped cut stems after drying treatment, wherein the air conveying treatment is mainly finished through an air conveyor, the air conveyor is a vertical pipeline, air flow air vertically upwards is arranged in the pipeline, cut stems in the cut stems can fall down and are discharged after the cut stems enter the air conveyor, and pure cut stems are conveyed to the next step from the upper part of the pipeline;

step S43: the primary-shaped cut stems subjected to air blowing treatment are subjected to flexible air separation treatment, wherein the flexible air separation is to remove stems and impurities in the cut stems by adopting an air separator, so that the purity of the cut stems is further improved;

step S44: and storing the primary cut stems subjected to the flexible winnowing treatment.

In order to achieve the preheating effect before the drying process and to make the mixture of the cut stems and the cut tobacco expand more in the drying process, the method further includes the following steps before the step S41 is performed:

step S40: heating and humidifying the initial cut stems.

In some specific embodiments, the temperature of the warming and moisturizing treatment in the step S40 is 70 ℃ to 80 ℃, the humidity is 18% to 21%, and the holding time is 5 seconds. It should be noted here that the above-mentioned temperature, humidity and holding time are only the preferred values for the processing of cut rolled stems of most varieties and specifications, which are verified by a large number of tests according to the invention. In the practical application process, other corresponding numerical value ranges can be selected according to different varieties and specifications of products.

The drying process in step S41 may be air drying, natural air drying, or drum drying, and may be selected according to actual conditions during actual application. Generally, for pneumatic drying, the temperature of the pneumatic is in the range of 170 ℃ to 200 ℃, and the drying time is about 20 seconds; for roller drying, the temperature of the dried cylinder wall is 130-140 ℃, and the drying time is 3-4 minutes, generally 3 minutes and 30 seconds. It should be noted that the above-mentioned corresponding drying forms and the corresponding temperatures and time periods are only preferred examples of the embodiments of the present invention, and the practical application can be adjusted according to different practical requirements.

In addition, generally, the moisture of the cut stems subjected to the moisture regain treatment in step S1 is 17% ± 1%; the preset weight ratio in the step S2 is that the cut stems account for 20% +/-2% of the total weight of the cut stems and the tobacco leaves; the cutting gap of the cutter used for the shredding operation in step S3 is 0.12mm ± 0.01 mm.

The method for further processing the cut tobacco stems provided by the invention is described in detail above. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (1)

1. A deep processing method of tobacco stem shreds is characterized by comprising the following steps:

step S1: moisture regaining treatment is carried out on the cut stems with the large-size defects, and the humidity of the moisture regained cut stems is 17% +/-1%;

step S2: blending and mixing the cut stems subjected to moisture regain with the tobacco leaves according to a preset weight ratio, wherein the preset weight ratio is that the cut stems account for 20 +/-2% of the total weight of the cut stems and the tobacco leaves;

step S3: shredding the mixed cut stems and tobacco leaves to obtain primary cut stems, wherein the cutting clearance of a cutter adopted in the shredding operation is 0.12mm +/-0.01 mm;

step S4: and (3) performing shredding subsequent treatment on the primary cut stems, wherein the shredding subsequent treatment comprises the following steps:

step S40: heating and humidifying the initial cut stems, wherein the temperature of the heating and humidifying treatment is 70-80 ℃, the humidity is 18-21%, and the holding time is 5 seconds;

step S41: drying the primary cut stems, wherein the drying is roller drying, the temperature of the dried cylinder wall is 130-140 ℃, and the drying time is 3-4 minutes;

step S42: carrying out air conveying treatment on the primary-shaped cut stems after the drying treatment is finished;

step S43: carrying out flexible air separation treatment on the primary cut stems subjected to air conveying treatment;

step S44: and storing the primary cut stems subjected to the flexible winnowing treatment.

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